Capacitor having features of heat dissipation and of energy conservation

Abstract

A capacitor that has the features of heat dissipation and energy conservation comprises a capacitor core, an aluminum shell surrounding the capacitor core, the aluminum shell is covered with rubber that completely covers the top of the capacitor core, then with the use of an extruding machine, the upper orifice of the aluminum shell is extruded and sealed up around the rubber completely; the outer surface of the aluminum is formed with an aluminum oxidized insulating layer after the aluminum shell is processed through an aluminum metal surface transformation treatment, since the aluminum shell is not covered with plastic film (or sleeve), heat dissipation is enhanced; in addition, since plastic film or sleeve is not used, no pollution is occurred, and hence more friendly to the environment; furthermore, since heat generation is low, energy is conserved.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a capacitor that has the features of heat dissipation and of energy conservation, in particular, the features are derived from a capacitor that has the following constructions: (1) the surface of the aluminum shell is processed with aluminum metal surface transformation treatment, which allows the aluminum shell having better heat dissipation and radiating color, in addition, having improved heat dissipation, the capacitor is more reliable; (2) the aluminum shell is not covered with plastic film or sleeve, hence there is no additional cover of plastic film or sleeve that causes pollution to the environment; furthermore, since the heat generation is low, energy is better conserved.[0003]2. Description of Prior Art[0004]A capacitor, depending on its application, may be categorized as electrolytic capacitor or non-electrolytic capacitor; the electrolytic capacitor may be further categorized...

AI Technical Summary

Benefits of technology

[0010]The main objective of present invention is to provide a capacitor that has the features of heat dissipation and energy conservation. The heat dissipation feature is derived mainly from the specific construction of the capacitor in that: an aluminum shell, the surface of which is processed using aluminum metal surface transformation treatment and therefore, the surface becomes an insulating layer that is made from aluminum oxidized compound; since the aluminum shell is not covered with plastic film or sleeve, it enhances heat dissipation. In addition, without the use of plastic film or sleeve, there is less pollution to the environment and therefore it is more friendly to the environment. Furthermore, with low heat generation, energy is conserved.

[0011]A second objective of present invention is to provide a capacitor that has the features of heat dissipation and energy conservation mainly in that, the introduction of the use of anodic treatment, soaking and staining treatment, or other surface transformation treatments to the aluminum shell of the electrolytic capacitor of present invention enable the electrolytic capacitor of present invention to radiate different colors for identification purpose. Therefore, a uniformed treatment process standardizes the incorporation of color identification for capacitors, and the standardization induces ease of production and at the same time lowers costs of production.

[0012]A third objective of present invention is to provide a capacitor that has the features of heat dissipation and energy conservation by introduction of color distinction associating with different capacitors. For quality control purpose, colored capacitors help assemblers to easily identify whether the correct capacitors are installed in respect to their corresponding electric circuit panels. Therefore, colored capacitors significantly reduce the extent of faulty or mismatched component installation. In addition, colored capacitors may be incorporated into industrial designs to enhance products' artistic designs and appearances.

[0013]A fourth objective of present invention is to provide a capacitor having the features of heat dissipation and of energy conservation by the flexibility of the thickness of the insulating layer that is used with specific capacitor. The thickness used depends upon a capacitor's voltage specification, that is, a capacitor with high voltage specification may use thicker insulating layer, while the capacitor with low voltage specification may use thinner insulating layer.

[0014]Bearing the above objectives, the capacitor of present invention is equipped with a capacitor core placed in an aluminum shell, the aluminum shell is covered with rubber, and the rubber completely covers the top of the capacitor core, by using of extruding machine, the orifice of aluminum shell is extruded and sealed up around the rubber completely; this aluminum shell contains an aluminum oxidized insulating layer after going through the aluminum metal surface transformation treatment and therefore no plastic film (or sleeve) is used. Since the aluminum shell is not covered with plastic film (or sleeve), heat dissipation is enhanced; also, since the aluminum shell is not covered with plastic film or sleeve, it does not cause pollution, and thus is more friendly to environment; furthermore, since the heat generation is low, energy is better conserved.

Problems solved by technology

The problem of the above aluminum solid electrolytic capacitor is that: at the outer layer of the aluminum shell 2 there is usually a plastic film 20 (or sleeve), as shown in FIG. 3, this composition has poor heat dissipation, and it also lowers the capacitor's working efficiency (i.e. high energy consumption), in addition, because of the poor heat dissipation, service life of the capacitor is greatly affected.

Another disadvantage of the traditional capacitor is that it is difficult to distinguish capacitors that are to be used for different specifications, since the aluminum shell of the various capacitors have the same color, it is difficult to separate the different capacitors judging from their external appearances, therefore, this may cause misuse of capacitors for their respective applications.

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